Global Patent Index - EP 1380177 A1

EP 1380177 A1 20040114 - PICTURE SIGNAL CONTRAST CONTROL

Title (en)

PICTURE SIGNAL CONTRAST CONTROL

Title (de)

BILDSIGNALKONTRASTSTEUERUNG

Title (fr)

REGLAGE DU CONTRASTE DE SIGNAUX IMAGE

Publication

EP 1380177 A1 20040114 (EN)

Application

EP 02713160 A 20020402

Priority

  • EP 02713160 A 20020402
  • EP 01201334 A 20010411
  • IB 0201095 W 20020402

Abstract (en)

[origin: WO02085037A1] The present invention relates to controlling contrast in at least part of a picture. The contrast control is performed by reducing the saturation (2-4) of the picture during contrast increase (1).

IPC 1-7

H04N 9/68; H04N 5/57

IPC 8 full level

H04N 5/57 (2006.01); H04N 9/68 (2006.01)

CPC (source: EP KR US)

H04N 9/68 (2013.01 - US); H04N 9/77 (2013.01 - KR); H04N 23/86 (2023.01 - EP KR)

Citation (search report)

See references of WO 02085037A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02085037 A1 20021024; CN 1305319 C 20070314; CN 1461572 A 20031210; EP 1380177 A1 20040114; JP 2004519972 A 20040702; JP 4130366 B2 20080806; KR 100911815 B1 20090812; KR 20030019420 A 20030306; US 2003063221 A1 20030403; US 7050114 B2 20060523

DOCDB simple family (application)

IB 0201095 W 20020402; CN 02801126 A 20020402; EP 02713160 A 20020402; JP 2002582633 A 20020402; KR 20027016808 A 20020402; US 11782702 A 20020408